The Internal Revenue Service said in an email to tax professionals Friday that it would begin sending letters to enrolled agents in late July when their enrollment status is being inactivated or terminated because of their failure to renew.

Enrolled agents with Social Security numbers ending in 0, 1, 2 or 3 who did not renew for the 2013 cycle will have their enrollment placed in inactive status by July 31, 2013.

Enrolled agents with Social Security numbers ending in 0, 1, 2 or 3 who have not renewed since the 2007 cycle will have their enrollment placed in terminated status by July 31, 2013.

Enrolled agents who have questions about their enrollment status are asked to contact the Enrolled Agent Policy and Management mailbox at epp@irs.gov.